Packaging filling yarn



Nov. 24, 1942. e. A. EARLY PACKAGING FILLING YARN Filed Jun e 15, 1939 aRE N O. R 3 m T Mm} Q @Q Y. B

' Patented Nov. 24, 1942 PACKAGING FILLING YARN George A. liar-1y, OldOrchard, Maine, assignor to Pepperell -Manufacturing Company, Boston,

Mass., a corporation oi Massachusetts Application June 15, 1939, SerialNo. 279,313

1 Claim.

This invention relates to methods and apparatus for spinning and/orpackaging yarn for filling shuttles and its object is to provide a novelmethod and apparatus which increase by as much as 30% or more-the amountof yarn that can be carried by the conventional shuttle. I have achievedthat result by winding the yarn on the bobbin in apparatus whichpresents the combination of a spindleless driving mechanism and abobbinto be used therein that is solid rather than axially bored asheretofore, and thereby is of considerably smaller external diameter andof larger capacity than prior hollow bobbins used on spindles. Toincrease further the amount of yarn on the bobbin I wind it under strongtension and where the yarn is a spun yarn,

such as cotton or the like, I complete the spin-'- ning before windingthe bobbin so that during such winding the yarn has suflicient strengthto withstand the tension without breaking.

In the drawing:

Fig. 1 is a diagrammatic representation of a spinning frame;

Fig. 2 is a diagrammatic view of winding apparatus suitable for mypurposes;

Fig. 3 is a side view of my novel bobbin; and

neighborhood of of an inch or less, as contrasted with an externaldiameter of of an III Fig. 4 is a section on the line 4-4 of Fig. 3'. v

I have illustrated in Figs. 3 and 4 a bobbin of novel constructionembodying my invention by which; in part, I am able to increaseconsiderably the amount of yarn that can be carried by a fillingshuttle. :The principle of myv bobbin may be embodied in bobbins ofvarious shapes and sizes for packaging cotton, rayon or other yarns. Forpurposes of illustration only, I have.

shown a cotton bobbin approximately 8% inches long. It has a head 42which may be of usual size, shape and construction (approximately 1 inchexternal diameter) and with the conventional rings IIIIL. The tip 52 atwhich the opposite end of the bobbin terminates being enlarged ,modates'the usual devices on the lathe in which the'bobbin is turned. As a.result of this solid shank construction, the external diameter of theinch or more in a conventional bobbin of this size and shape. Thissubstantial reduction in size of the major portion of the bobbin shankeil'ects a very substantial increase in the length of yarn that may becarried by the bobbin and yet readily received within the cavity of thecon ventional shuttle.

The bobbin illustrated is of the type adapted for an automatic shuttlechanging loom having the conventional feeler mechanism which detects adepleted package by feeling the package adjacent the head end portion ofthe shank designated IIII. To coordinate with that type of feelermechanism; 1 enlarge the portion III! of the shank to the necessarysize, about of an inch in diameter in the bobbin shown. The portion IIII may be conveniently an inch and a half long .in a bobbin of the typeillustrated and merges,

' entire length, or it may taper slightly as is conformed, preferablyemploying my novel bobbin I above described. It the yarn is of a typethat does not require spinning, such as filament rayon, the method stepsof my invention will pertain only to winding on the bobbin, asillustrated in Fig. 2, but for spun yarns of cotton, rayon and the likemy method provides preferred steps of spinning and bobbin winding.

In Fig. 1 I have diagrammatically illustrated a machine of suitable typefor spinning yarn in accordance with the method aspect of my inven-;

tion. It, according to the system conventionally employed for spinningthe given type of.

yarn, there is more than one spinning operation,

such as an initial spinning on a roving frame and a final spinning on aring spinning frame, the apparatus of Fig. 1 is the machine on which thelast spinning operation is effected and it may be a roving frame or, asillustrated. a ring spinning major portion I08 of the shank may be inthe 55 frame. The creell has a large number of bobbins 4, of yarn orroving tobe spun. At 6 are indicated the drafting rolls to draft thefilaments I which pass thence through a pi'gtail eye II and the core ofthe package I4 is mounted;

All of the foregoing details may be of conventional construction'exceptthat the package I4 is preferably two, three or more times as large ascould be received within the filling shuttle. The package mayconveniently conform to the size of the usual warp bobbin and; indeed,the spinning frame it may be a warp spinning frame.

.The package I4 of spun yarn is removed from the spinning frame and isrewound as illustrated in Fig. 2. The creel 30 carries spindles 32 onwhich preferably several packages l4 are placed and the yarn from eachpackage is wound on a bobbin 40 of the construction above described.'I'hehead 41 of the bobbin is received within a cup 44 secured toshaft'46 power rotated from a suitable power source, as indicated by thepulley Yarn drawn off the end of. bobbin I4 is threaded through theguide 10 and through the friction disks l2 and 14. These friction disksmay be of conventional construction, composed of pairs of convex disksspring pressed against each other as indicated. After passing throughguides "II the yarn is threaded through the eye It ofa plate carried onrotating screw 1| operated to effect a traverse motion 'as the yarn iswound on the bobbin to form the package represented at It. The externaldiameter of the portion I of the shank is nogreater than one-half theexternal 4|. Within the cup 44 is a layer of resilient material illagainst which the bobbin is pressed from its opposite end 52. The tip 52is received within a second cup 54 carried on a shaft 56 having a freesliding fit in an orifice '58, drilled in the frame. A spring 60interposed between a sleeve 42, secured to shaft 56, and frame 64,yieldingly urges the cup 64 in the direction of. cup 44 to diameter ofthe package.

It will be noted' that the driving means for the bobbin in the windereliminates the use of a spindle, thereby eflectively utilizing a bobbinwith solid shank and hence of unusually small external diameter andlarge yarn capacity. The tension devices 12 and." further increase thisquantity of yarn and as the spinning of the yarn,

if any, is completed before winding on to the'bob bin the yarn hassufllcient strength to withstand 7 this tension.

I claim:

In apparatus shuttles, the combination of a yarn receiving core having ahead of predetermined diameter. a spindleless driver engaging the headto rotate the core to wind yarn thereon, a shank forming a por tion ofsaid core, which, throughout the major portion of its length, is solidin cross section and of a thickness less than approximately one-half thediameter of the head, a tip, on the opposite press= bobbin head 42firmly against the resilient layer II. Suitable means, suchas a collar66 or the like, fixed to the end of shaft '56 projecting outside offrame 64, prevents the withdrawal of the shaft from the frame.

To insert the bobbin the cup '54 is retracted against. the pressure ofspring to. the head 42 of the bobbin is inserted in cup 44 and-cup i4 isreleased against the bobbin. Asa result of the pressure of head 42 onthe material 50, there is sufficient friction to drive the bobbinwithout slippage. A thrust bearing 61 having plat 80 concaved'to receivethe tip 52 of the bobbin freely permits such rotation.

end of the shank from the head, of a thickness exceeding that of. theshank to present a shoulder for minimizing flu-mng ofl of the yarn overthe tip, a cup adapted to support said tip, and means.

for guiding yarn into direct engagement with the shank throughout itsentire length to form a packagewhich directly engages the shank andwhich throughout the major portion of its length" has an internaldiameter less than approximately one-half the external diameter of thehead.

forpackaging yarn for filling

